LZW Algorithm

LZW (Lempel-Ziv-Welch) is a lossless data compression algorithm that is commonly used in space and astronautical engineering applications to reduce the size of data files transmitted between spacecraft and ground stations. The algorithm works by replacing repeated occurrences of data with a code that represents the repeated data, thereby reducing the overall size of the file. The LZW algorithm is particularly effective for compressing data that contains repeated patterns, such as telemetry data or images. It is also used in the compression of software and firmware updates that are transmitted to spacecraft in order to conserve bandwidth and reduce transmission times.
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